2-(3,5-Dimethyl-4-nitro-1h-pyrazol-1-yl)ethane-1-sulfonyl fluoride CAS 877964-30-2
| CAS No. | 877964-30-2 |
| Molecular Formula | C7H10FN3O4S |
| Molecular Weight | 251.24 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
Compared with other compounds in its class, the molecular weight of 251.24 g/mol gives 2-(3,5-Dimethyl-4-nitro-1h-pyrazol-1-yl)ethane-1-sulfonyl fluoride distinctive chromatographic separation conditions and mass-spectrometry parameter settings.
2-(3,5-Dimethyl-4-nitro-1h-pyrazol-1-yl)ethane-1-sulfonyl fluoride (CAS 877964-30-2) is a high-purity analytical reference standard with the molecular formula C7H10FN3O4S and a molecular weight of 251.24 g/mol.
Structurally, 2-(3,5-Dimethyl-4-nitro-1h-pyrazol-1-yl)ethane-1-sulfonyl fluoride (C7H10FN3O4S) contains an amide group, a sulfone group, a carboxylic acid group, a hydroxyl group, an ether linkage, fluorine substitution, an aromatic ring system. The molecule exhibits a degree of unsaturation (DBE) of 4.0, corresponding to approximately 4 ring(s) or double-bond equivalent(s). With a molecular weight of 251.24 g/mol, it falls into the medium-molecular-weight range. The presence of an aromatic ring or conjugated system gives the compound characteristic absorption bands in the UV-Vis region, making it well suited to UV or diode-array detection (DAD).
Recommended for analytical method development and validation; each product is supplied with a full Certificate of Analysis (COA) ensuring ISO 17034 metrological traceability.
The assigned purity is verified by mass-balance and quantitative NMR (qNMR) approaches, with the expanded uncertainty reported at a 95% confidence level (k=2). Batch homogeneity and stability are independently assessed for every lot.
Physical & Chemical Properties
| Molecular Formula | C7H10FN3O4S |
| Molecular Weight | 251.24 g/mol |
| Purity | 97%+ |
| Storage | Store at 2-8°C, protect from light, keep sealed and dry, keep tightly closed to prevent evaporation |
| Solubility (reference) | Soluble in methanol, ethanol, DMSO, water |
| Stability | May oxidize slowly on prolonged air exposure; Light-sensitive; avoid direct strong light; Hygroscopic; reseal immediately after opening; Contains ester bond; hydrolyzes under strong alkaline conditions |
| Degree of Unsaturation (DBE) | 4.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1987 |
| Halogen Content | F-containing |
| Nitrogen Atoms | 3 |
| Sulfur Atoms | 1 |
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- Semaglutide (CAS CATO-C4X-2226105)
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